This photographic report was shoot at summer 2013 in Sevastopol for searching construction features of the defensive walls of Hersonissos. The block with bas-relief is not fit to the general masonry. The big lower blocks is laying on much smaller stones. The big lower blocks is laying on much smaller stones. Square opening. Well manufactured edges of the block. How it`s hold on? Square opening. As ancient - as qualitatively. The block with fragmentary bas-relief is not fit to the general masonry. The hooks of the big blocks. The more ancient masonry of big and well manufactured blocks without clay binder below. Then smaller blocks and much roughly manufactured blocks on clay binder up. Strange bas-relief. Incut - why? The niche of a took out block below the wall. There are no clefts in the wall between blocks. Very well manufactured facets of blocks. A local. The running chicken. The running dog. The traces of manufactured tool. The square notch on the big block - why? The stone insertions without hooks - why? The stone insertion without hook. The notch for brace without response one. The notch for brace without response one. The notch for brace without response one. The notches for braces without response ones. The block with rectangular notches do not fit to general masonry. Very well manufactured edges of the block. The notch for brace without response one. Square opening. Square through openings. On upper block trace of a circular saw. The notch for brace without response one. The notches without brace. The notch for brace without response one. A strange sign on end of the block. Square opening. More square openings. The beautiful place with ancient history.